cn8223 Mindspeed Technologies, cn8223 Datasheet - Page 59

• Manufacturer Part Number: cn8223
• Description: Atm Transmitter/receiver With Utopia Interface
• Manufacturer: Mindspeed Technologies

CN8223
ATM Transmitter/Receiver with UTOPIA Interface
2.5.3 Receive Parallel Interface
Figure 2-15. Receive Parallel Interface Timing
100046D
RXDAT[7:0]
RXCKI
RXOD
Data
Interface connections for the Receive Parallel Interface mode are listed in
Table
parallel mode, data octets are provided on RXDAT[7:0] with an octet clock (up to
20 MHz) on RXCKI. The octet data is sampled on the falling edge of RXCKI.
The data inputs can be sampled on the rising edge of the input clock by setting
Invert RX Clock Sampling [bit 8] of CONFIG_3 [0x02]. An idle octet indicator
can be provided on RXOD as illustrated in
octets for which the RXOD input is high. This input can be used to mark framing
overhead (non-ATM payload) octets.
Table 2-16. Receive Parallel Interface Mode Connections
Receive Clock Input (RXCKI)
Receive Octet Disable (RXOD)
Receive Data Input (RXDAT)
2-16.
Figure 2-15
Signal Name
(ignored)
Data
Conexant
illustrates the receive timing for the parallel interface. In
Data
RXCKI
RXIN[8]
RXIN[7:0]
Figure
Connect to CN8223 Pin
2-15. The CN8223 ignores all
2.0 Functional Description
Data
2.5 Parallel Line Interface
2-25